CN203596076U - Household multichannel infrared smoke-sensing fire alarm based on GSM network - Google Patents
Household multichannel infrared smoke-sensing fire alarm based on GSM network Download PDFInfo
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- CN203596076U CN203596076U CN201320568160.7U CN201320568160U CN203596076U CN 203596076 U CN203596076 U CN 203596076U CN 201320568160 U CN201320568160 U CN 201320568160U CN 203596076 U CN203596076 U CN 203596076U
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Abstract
The utility model discloses a household multichannel infrared smoke-sensing fire alarm based on a GSM network, and the fire alarm comprises infrared transmitting end circuits, an infrared receiving end circuit, and a fire alarm circuit. Each infrared transmitting end circuit comprises infrared transmitters which are disposed at different places and connected with an infrared transmitting end master-control single-chip microcomputer. The infrared receiving end circuit comprises infrared receivers, wherein the number of the infrared receivers is the same as the number of the infrared transmitting end circuits. The fire alarm provided by the utility model can effectively reduce the impact from an environment and noise interference, and improves the signal noise ratio of infrared receiving light beams, thereby enlarging the monitoring range of a fire alarm system, and improving the alarm accuracy of the fire alarm system. The fire alarm provided by the utility model is large in range of monitoring, is low in rate of false alarm, is quick in alarm speed, and has certain value of application in the range of automatic alarm of fire.
Description
Technical field
The utility model relates to a kind of fire alarm installation, particularly the infrared smoke alarm of a kind of family expenses hyperchannel based on GSM network.
Background technology
In the disaster of full spectrum of threats human life property safety, fire is the most frequently, the most incidental, larger to the threat of public security and social development a kind of disaster.Be different from disaster, cause the various factors of fire constantly to increase along with the development of modern society.Along with the development of national economy, urban and rural residents' entirety growth in the living standard, Modern Family adopts increasing inflammable material finishing, uses increasing high-power electric appliance, and the frequency that causes family fire to occur is more and more higher.Fire not only causes material property loss, affects the stable of civil order, and can cause great injury to human life's safety, physical and mental health.
Compared with the fire alarm system of the household fire alarm system large-scale public place on duty with being arranged on Security Personnel, need higher warning accuracy and lower rate of false alarm.False alarm is a major issue cannot avoiding in fire alarm system design process always.The main sensor that adopts contact of most fire-alarm design gathers fire signal, the sensor of this contact can cause the variation of output electrical signals according to sensor surrounding environment as the variation of temperature or smog etc. mostly, thus in the time there is emergency case as temperature sharply rises or smog dispersed alarm system can give the alarm in time.But the sensor of contact can only monitor local fire signal, and fire signal in can not monitoring in time on a large scale, this is to cause the fire-alarm inefficient very important factor of reporting to the police.In family fire, smog gas is the fire signal occurring the earliest, can adopt variation that smoke transducer monitors smokescope in air to judge whether to occur fire alert.Infrared sense smoke sensor is a kind of contactless smoke transducer that utilizes smog dim light method to measure smokescope, its infrared transmitter transmitting infrared beam, in the time that infrared beam arrives infrared remote receiver through smog, the intensity of infrared beam can weaken, when its intensity can be judged as and occur fire signal lower than setting when threshold values.Although the working method of infrared sense smoke sensor is contactless, can survey the smog away from it, but near the heat radiation of object infrared beam transmission channel, object block the intensity that all can affect infrared receiving beam with the noise of receiver temporarily, cause the wrong report of fire-alarm or have the situation that alert is not reported to occur, and its fire alarm scope also only only limits in infrared beam transmission channel.Therefore, design that a kind of investigative range is large, rate of false alarm is low and the infrared smoke alarm rapidly of reporting to the police just seems extremely important.
Utility model content
For addressing the above problem, the utility model discloses the infrared smoke alarm of a kind of family expenses hyperchannel based on GSM network.
In order to achieve the above object, the utility model provides following technical scheme: the infrared smoke alarm of a kind of family expenses hyperchannel based on GSM network, comprise infrared emission terminal circuit, infrared receiving terminal circuit and fire alarm circuit, described infrared emission terminal circuit comprises the infrared transmitter that is arranged on diverse location, the described infrared transmitter that is arranged on diverse location is connected with infrared emission end main control singlechip, and described infrared receiving terminal circuit comprises the infrared remote receiver with quantity such as described infrared emission terminal circuits.
As a kind of improvement of the present utility model, described fire alarm circuit comprises single-chip microcomputer governor circuit, A/D convertor circuit, gsm module circuit, LCD display circuit and key circuit, described A/D convertor circuit, gsm module circuit, LCD display circuit and key circuit are connected with single-chip microcomputer governor circuit respectively, described A/D convertor circuit is connected with infrared receiving terminal circuit, and the distance between the described infrared transmitter of every group and infrared remote receiver equates.
As a kind of improvement of the present utility model, described infrared remote receiver is mainly made up of infrared triode receiver, signal amplification circuit, bandwidth-limited circuit and voltage conversion circuit.
As a kind of improvement of the present utility model, described infrared emission end main control singlechip adopts the single-chip microcomputer that model is STC89C52RC.
As a kind of improvement of the present utility model, described single-chip microcomputer governor circuit adopts the single-chip microcomputer that model is STC89C52RC.
As a kind of improvement of the present utility model, described A/D convertor circuit comprises chip ADC0809.
The beneficial effects of the utility model:
The infrared sense smoke sensor that the utility model adopts multichannel to be placed on diverse location is monitored smoke signal simultaneously, and the signal after gathering is carried out to multichannel average treatment effectively to reduce the impact of environment and noise, improve the Signal to Interference plus Noise Ratio of infrared receiving beam, this has not only expanded the monitoring range of fire alarm system, and has improved the warning accuracy rate of fire alarm system.While there is fire alert, this alarm uses GSM network that alarming short message is preset in phone number to sending, and the warning message of fire is sent on owner's mobile phone in time to the loss causing to reduce fire within the very first time.The family expenses hyperchannel infrared smoke alarm monitoring range of the utility model based on GSM network is large, rate of false alarm is low and the infrared smoke alarm rapidly of reporting to the police, and has certain using value in automatic fire alarm field.
Accompanying drawing explanation
Fig. 1 is system architecture diagram of the present utility model;
Fig. 2 is the schematic diagram that the infrared sense smoke sensor of multichannel of the present utility model improves warning accuracy rate;
Fig. 3 is infrared emission terminal circuit figure of the present utility model;
Fig. 4 is infrared remote receiver circuit diagram of the present utility model;
Fig. 5 is fire alarm circuit figure of the present utility model;
Embodiment
Technical scheme the utility model being provided below with reference to specific embodiment is elaborated, and should understand following embodiment and only be not used in restriction scope of the present utility model for the utility model is described.
Be illustrated in figure 1 the structured flowchart of a kind of infrared smoke alarm of family expenses hyperchannel based on GSM network of the present utility model, comprise infrared emission terminal circuit, infrared receiving terminal circuit and fire alarm circuit, described infrared emission terminal circuit comprises the infrared transmitter that is arranged on diverse location, the described infrared transmitter that is arranged on diverse location is connected with infrared emission end main control singlechip, described infrared receiving terminal circuit comprises the infrared remote receiver with quantity such as described infrared emission terminal circuits, distance between the described infrared transmitter of every group and infrared remote receiver equates.
As a kind of improvement of the present utility model, described fire alarm circuit comprises single-chip microcomputer governor circuit, A/D convertor circuit, gsm module circuit, LCD display circuit and key circuit, described A/D convertor circuit, gsm module circuit, LCD display circuit and key circuit are connected with single-chip microcomputer governor circuit respectively, and described A/D convertor circuit is connected with infrared receiving terminal circuit.
As a kind of improvement of the present utility model, described infrared remote receiver is mainly made up of infrared triode receiver, signal amplification circuit, bandwidth-limited circuit and voltage conversion circuit.
As a kind of improvement of the present utility model, described infrared emission end main control singlechip adopts the single-chip microcomputer that model is STC89C52RC.
As a kind of improvement of the present utility model, described single-chip microcomputer governor circuit adopts the single-chip microcomputer that model is STC89C52RC.
As a kind of improvement of the present utility model, described A/D convertor circuit comprises chip ADC0809.
Fig. 3 is infrared emission terminal circuit figure of the present utility model, ultrared transmission range is relevant with infrared emission power and signal frequency, when transmit as characteristic frequency square-wave pulse time, the better performances of infrared transmitter, infrared emitting distance is affected by environment little.It is that the infrared pulse of 1KHz transmits that the utility model produces repetition frequency by Single-chip Controlling, then will be transmitted and is driven on 8 infrarede emitting diodes by 8 triodes respectively, transmitting 8 road infrared pulse signals.When in infrared emission terminal circuit, the P2 mouth of single-chip microcomputer STC89C52RC is output as high level, 8 infrared transmitting tubes are not luminous, in the time that P2 mouth is output as low level, and 8 infrared transmitting tube transmitting infrared pulse signals.
Fig. 4 is infrared remote receiver circuit diagram of the present utility model, and the utility model adopts multichannel infrared remote receiver to receive the infrared signal that multichannel infrared transmitter is launched, and its receive frequency must be identical with transmitter emission signal frequency.Each road infrared remote receiver is mainly made up of infrared triode receiver, signal amplification circuit, bandwidth-limited circuit and voltage conversion circuit.Infrared remote receiver by the signal of reception by amplify and bandpass filtering after send into AD converter and sample to can process in single-chip microcomputer.This circuit adopts infrared triode receiver to receive the infrared signal of transmitting terminal transmitting, then adopt in-phase proportion amplifying circuit to amplify to received signal, signal after amplification, through active second order bandwidth-limited circuit filtering partial noise and interference, is finally transferred to filtering signal chip ADC0809 and carries out AD conversion.Because operational amplifier LM324 adopts dual power supply mode of operation, be respectively+5V and-5V, therefore by miniwatt reversal of poles power supply changeover device ICL7660 general+5V voltage transitions be-5V powers to LM324.
Fig. 5 is fire alarm circuit figure of the present utility model, fire alarm circuit comprises single-chip microcomputer governor circuit, A/D convertor circuit, gsm module circuit, LCD display circuit and key circuit, described A/D convertor circuit, gsm module circuit, LCD display circuit and key circuit are connected with single-chip microcomputer governor circuit respectively, and described A/D convertor circuit is connected with infrared receiving terminal circuit.
Single-chip microcomputer governor circuit adopts the single-chip microcomputer that model is STC89C52RC, and A/D convertor circuit comprises chip ADC0809.Single-chip microcomputer STC89C52RC controls ADC0809 chip and successively the infrared reception signal of each receiver is sampled by the cycle of transmitting, in this circuit diagram, infrared remote receiver HWJS1 ~ HWJS8 has done reduced representation, and the hardware circuit diagram of each infrared remote receiver as shown in Figure 4.Single-chip microcomputer STC89C52RC utilizes RAM that its inside carries to realize the 8 infrared reception data in tunnel after AD conversion are carried out to multichannel average treatment, then compare with the fire threshold values of setting, judge whether breaking out of fire, and on liquid crystal display LCD1602, show the signal waveform of multichannel after average, can also show fire threshold values and default phone number etc. simultaneously.
Because environment and the noise of infrared signal in different transmission channels is random variation, therefore multichannel infrared collecting signal is carried out to multichannel average treatment and can effectively reduce environment and noise impact, improve the Signal to Interference plus Noise Ratio (SINR) of infrared receiving beam, thereby improve the warning accuracy rate of fire alarm system.Fig. 2 is the schematic diagram that the infrared sense smoke sensor of multichannel improves warning accuracy rate, if exist interim object to block in the Infrared Transmission path of the infrared sense smoke sensor in certain road, its corresponding infrared remote receiver will not receive the signal of infrared transmitter transmitting, this can cause the infrared smoke-sensitive alarm device of single channel to there will be the phenomenon of false alarm, and the infrared smoke-sensitive alarm device of multichannel has reduced the impact of environment and noise by multichannel average treatment, its infrared signal after treatment be subject to environment and noise less, therefore while there is interim object in a certain transmission channel, there will not be false alarm, efficiently solve the high problem of the infrared sense smoke sensor of single channel rate of false alarm.
Three keyboard S1, S2, S3 connect respectively single-chip microcomputer P3.3, P3.4 and P3.5 mouth, and for the threshold values of design fire judgement, wherein S1 is that threshold values arranges on & off switch, and S2 is for increasing key, and S3 is for subtracting key.In the time there is fire signal in judgement, single-chip microcomputer STC89C52RC by serial communication by AT command to gsm module, then gsm module is made corresponding operating according to the AT instruction that receives.Gsm module one has 40 ports, native system is connected single-chip microcomputer P3.0 (RXD), P3.1 (TXD) to carry out serial communication with RXD0, TXD0 port in gsm module, and single-chip microcomputer P3.7 mouth is connected for starting gsm module with gsm module IGT mouth.Single-chip microcomputer can be controlled gsm module, and the warning message of fire to be sent in time to default phone number within the very first time be on owner's mobile phone.
The infrared sense smoke sensor that the utility model adopts multichannel to be placed on diverse location is monitored smoke signal simultaneously, and the signal after gathering is carried out to multichannel average treatment effectively to reduce the impact of environment and noise, improve the Signal to Interference plus Noise Ratio of infrared receiving beam, this has not only expanded the monitoring range of fire alarm system, and has improved the warning accuracy rate of fire alarm system.While there is fire alert, this alarm uses GSM network that alarming short message is preset in phone number to sending, and the warning message of fire is sent on owner's mobile phone in time to the loss causing to reduce fire within the very first time.The family expenses hyperchannel infrared smoke alarm monitoring range of the utility model based on GSM network is large, rate of false alarm is low and the infrared smoke alarm rapidly of reporting to the police, and has certain using value in automatic fire alarm field.
The disclosed technological means of the utility model scheme is not limited only to the disclosed technological means of above-mentioned embodiment, also comprises the technical scheme being made up of above technical characterictic combination in any.
Claims (6)
1. the infrared smoke alarm of the family expenses hyperchannel based on GSM network, it is characterized in that: comprise infrared emission terminal circuit, infrared receiving terminal circuit and fire alarm circuit, described infrared emission terminal circuit comprises the infrared transmitter that is arranged on diverse location, the described infrared transmitter that is arranged on diverse location is connected with infrared emission end main control singlechip, described infrared receiving terminal circuit comprises and the infrared remote receiver of the quantity such as described infrared emission terminal circuit, and the distance between the described infrared transmitter of every group and infrared remote receiver equates.
2. the infrared smoke alarm of the family expenses hyperchannel based on GSM network according to claim 1, it is characterized in that: described fire alarm circuit comprises single-chip microcomputer governor circuit, A/D convertor circuit, gsm module circuit, LCD display circuit and key circuit, described A/D convertor circuit, gsm module circuit, LCD display circuit and key circuit are connected with single-chip microcomputer governor circuit respectively, and described A/D convertor circuit is connected with infrared receiving terminal circuit.
3. the infrared smoke alarm of the family expenses hyperchannel based on GSM network according to claim 1, is characterized in that: described infrared remote receiver is mainly made up of infrared triode receiver, signal amplification circuit, bandwidth-limited circuit and voltage conversion circuit.
4. the infrared smoke alarm of the family expenses hyperchannel based on GSM network according to claim 1, is characterized in that: described infrared emission end main control singlechip adopts the single-chip microcomputer that model is STC89C52RC.
5. the infrared smoke alarm of the family expenses hyperchannel based on GSM network according to claim 2, is characterized in that: described single-chip microcomputer governor circuit adopts the single-chip microcomputer that model is STC89C52RC.
6. the infrared smoke alarm of the family expenses hyperchannel based on GSM network according to claim 2, is characterized in that: described A/D convertor circuit comprises chip ADC0809.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320568160.7U CN203596076U (en) | 2013-09-13 | 2013-09-13 | Household multichannel infrared smoke-sensing fire alarm based on GSM network |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320568160.7U CN203596076U (en) | 2013-09-13 | 2013-09-13 | Household multichannel infrared smoke-sensing fire alarm based on GSM network |
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| CN203596076U true CN203596076U (en) | 2014-05-14 |
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| CN201320568160.7U Expired - Fee Related CN203596076U (en) | 2013-09-13 | 2013-09-13 | Household multichannel infrared smoke-sensing fire alarm based on GSM network |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105069956A (en) * | 2015-08-05 | 2015-11-18 | 成都君禾天成科技有限公司 | Smoke detection circuit based on power line communication |
-
2013
- 2013-09-13 CN CN201320568160.7U patent/CN203596076U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105069956A (en) * | 2015-08-05 | 2015-11-18 | 成都君禾天成科技有限公司 | Smoke detection circuit based on power line communication |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140514 Termination date: 20150913 |
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| EXPY | Termination of patent right or utility model |